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有限采样法估算天疱疮患者霉酚酸AUC模型的建立 被引量:4

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摘要 目的建立有限采样法估算天疱疮患者口服强的松联合霉酚酸酯(MMF)的霉酚酸(MPA)血药浓度-时间曲线下面积(AUC)模型。方法采集天疱疮患者口服强的松联合MMF达稳态后服药前和服药后0.5h、1h、2h、4h、6h、8h和12h外周静脉血,用酶放大免疫测定技术(EMIT)检测血浆MPA浓度,用线性梯形法计算服药后0-12h的MPA-AUC,用DAS软件分析药动学参数,用SPSS软件拟合估算MPA-AUC0-12h的回归方程,并用Bland-Altman法对其精准性进行评价。结果取得37次完整采血点数据,其MPA血药浓度-时间曲线形态基本相同;2点和3点拟合的复相关系数较低,4点、5点拟合的复相关系数较高,其中4点(1h、4h、8h、12h)、5点(0.5h、1h、4h、8h、12h)、5点(1h、4h、6h、8h、12h)拟合的回归方程与实际AUC0-12h的相关性好、误差低,结合预测精准性、检测成本和可操作性,推荐4点的回归模型AUC0-12h=7.277+1.090C1h+4.670C4h+3.214C8h+2.118C12h。结论天疱疮患者口服强的松联合多剂MMF,以服药后1h、4h、8h、12h的MPA浓度估算MPAAUC0-12h较好,可作为临床监测MPA浓度的指标,指导个体化给药。
出处 《四川大学学报(医学版)》 CAS CSCD 北大核心 2015年第4期633-637,共5页 Journal of Sichuan University(Medical Sciences)
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